#!/usr/bin/python
# -*- coding:utf-8 -*-
# @author  : micah
# @time    : 2023/10/10 21:03
# @function: the script is used to do something.
# @version :

i = 0
while i < 3:
    print("i = %d" % i)
    i += 1
    j = 0
    while j < 3:
        print("---")
        j += 1
        break  # 如果break内层循环中，则只会影响内层
